Method and apparatus for detecting errors, fluid pressure, and occlusions in an ambulatory infusion pump
First Claim
1. A method of detecting a malfunction with a force sensor in an infusion pump having a motor to drive a plunger slide into a reservoir, the method comprising:
- taking current measurements to the motor;
detecting when the plunger slide is seated in the reservoir based on the current measurements; and
detecting a problem with the force sensor when the force sensor independently fails to register a value indicating that the plunger slide is seated in the reservoir.
1 Assignment
0 Petitions
Accused Products
Abstract
An improved pump, reservoir and reservoir piston are provided for controlled delivery of fluids. A motor is operably coupled to a drive member, such as a drive screw, which is adapted to advance a plunger slide in response to operation of the motor. The plunger slide is removably coupled to the piston. A method, system, and an article of manufacture for automatically detecting a force sensor failure in a medication infusion pump is provided. The electrical current to an infusion pump is measured. Based on the current measurements, the infusion pump detects when the plunger slide is seated in the reservoir, and detects a problem with the force sensor when the force sensor independently fails to register a value indicating that the plunger slide is seated in the reservoir.
-
Citations
14 Claims
-
1. A method of detecting a malfunction with a force sensor in an infusion pump having a motor to drive a plunger slide into a reservoir, the method comprising:
-
taking current measurements to the motor; detecting when the plunger slide is seated in the reservoir based on the current measurements; and detecting a problem with the force sensor when the force sensor independently fails to register a value indicating that the plunger slide is seated in the reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An article of manufacture containing code for detecting a malfunction with a force sensor in an infusion pump having a motor to drive a plunger slide into a reservoir, comprising a computer usable media including at least one embedded computer program that is capable of causing at least one computer to perform:
-
taking current measurements to the motor; detecting when the plunger slide is seated in the reservoir based on the current measurements; and detecting a problem with the force sensor when the force sensor independently fails to register a value indicating that the plunger slide is seated in the reservoir. - View Dependent Claims (12, 13, 14)
-
Specification